feat(commands): add toggle autocomplete aliases

src/main/java/games/dmg/spigotbase/BaseFlightCommand.java

@@ -1,12 +1,16 @@
 package games.dmg.spigotbase;
 
+import java.util.List;
+import java.util.Locale;
 import org.bukkit.ChatColor;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandExecutor;
 import org.bukkit.command.CommandSender;
+import org.bukkit.command.TabCompleter;
 import org.bukkit.entity.Player;
 
-final class BaseFlightCommand implements CommandExecutor {
+final class BaseFlightCommand implements CommandExecutor, TabCompleter {
+    private static final List<String> MODES = List.of("on", "off");
     private final BaseStateManager stateManager;
     private final BaseFlightController controller;
 
@@ -26,10 +30,17 @@ final class BaseFlightCommand implements CommandExecutor {
             player.sendMessage(ChatColor.RED + "Base flight is still locked.");
             return true;
         }
+        final boolean enabled;
+        try {
+            enabled = TogglePreference.resolve(state.flightEnabled(), arguments);
+        } catch (IllegalArgumentException exception) {
+            player.sendMessage(ChatColor.RED + "Usage: /baseflight [on|off]");
+            return true;
+        }
         state = stateManager.update(
             player.getUniqueId(),
             player.getName(),
-            current -> current.withFlightEnabled(!current.flightEnabled())
+            current -> current.withFlightEnabled(enabled)
         );
         if (!state.flightEnabled()) {
             controller.removeGrantedFlight(player);
@@ -40,4 +51,18 @@ final class BaseFlightCommand implements CommandExecutor {
             + ChatColor.YELLOW + ".");
         return true;
     }
+
+    @Override
+    public List<String> onTabComplete(
+        CommandSender sender,
+        Command command,
+        String alias,
+        String[] arguments
+    ) {
+        if (arguments.length != 1) {
+            return List.of();
+        }
+        String prefix = arguments[0].toLowerCase(Locale.ROOT);
+        return MODES.stream().filter(mode -> mode.startsWith(prefix)).toList();
+    }
 }

src/main/java/games/dmg/spigotbase/BaseNavigationCommand.java

@@ -35,7 +35,7 @@ final class BaseNavigationCommand implements CommandExecutor, TabCompleter {
         }
         final boolean enabled;
         try {
-            enabled = NavigationPreference.resolve(state.navigationEnabled(), arguments);
+            enabled = TogglePreference.resolve(state.navigationEnabled(), arguments);
         } catch (IllegalArgumentException exception) {
             player.sendMessage(ChatColor.RED + "Usage: /basenavigation [on|off]");
             return true;

src/main/java/games/dmg/spigotbase/BaseVisitorsCommand.java

@@ -1,12 +1,16 @@
 package games.dmg.spigotbase;
 
+import java.util.List;
+import java.util.Locale;
 import org.bukkit.ChatColor;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandExecutor;
 import org.bukkit.command.CommandSender;
+import org.bukkit.command.TabCompleter;
 import org.bukkit.entity.Player;
 
-final class BaseVisitorsCommand implements CommandExecutor {
+final class BaseVisitorsCommand implements CommandExecutor, TabCompleter {
+    private static final List<String> MODES = List.of("on", "off");
     private final BaseStateManager stateManager;
 
     BaseVisitorsCommand(BaseStateManager stateManager) {
@@ -24,10 +28,17 @@ final class BaseVisitorsCommand implements CommandExecutor {
             player.sendMessage(ChatColor.RED + "Base IV visitor access is still locked.");
             return true;
         }
+        final boolean enabled;
+        try {
+            enabled = TogglePreference.resolve(state.visitorsEnabled(), arguments);
+        } catch (IllegalArgumentException exception) {
+            player.sendMessage(ChatColor.RED + "Usage: /basevisitors [on|off]");
+            return true;
+        }
         state = stateManager.update(
             player.getUniqueId(),
             player.getName(),
-            current -> current.withVisitorsEnabled(!current.visitorsEnabled())
+            current -> current.withVisitorsEnabled(enabled)
         );
         stateManager.saveIfDirty();
         player.sendMessage(ChatColor.YELLOW + "Visitor teleports are now "
@@ -35,4 +46,18 @@ final class BaseVisitorsCommand implements CommandExecutor {
             + ChatColor.YELLOW + ".");
         return true;
     }
+
+    @Override
+    public List<String> onTabComplete(
+        CommandSender sender,
+        Command command,
+        String alias,
+        String[] arguments
+    ) {
+        if (arguments.length != 1) {
+            return List.of();
+        }
+        String prefix = arguments[0].toLowerCase(Locale.ROOT);
+        return MODES.stream().filter(mode -> mode.startsWith(prefix)).toList();
+    }
 }

src/main/java/games/dmg/spigotbase/SpigotBasePlugin.java

@@ -74,8 +74,12 @@ public final class SpigotBasePlugin extends JavaPlugin {
         BaseNavigationCommand navigationCommand = new BaseNavigationCommand(stateManager);
         command("basenavigation").setExecutor(navigationCommand);
         command("basenavigation").setTabCompleter(navigationCommand);
-        command("baseflight").setExecutor(new BaseFlightCommand(stateManager, flightController));
-        command("basevisitors").setExecutor(new BaseVisitorsCommand(stateManager));
+        BaseFlightCommand flightCommand = new BaseFlightCommand(stateManager, flightController);
+        command("baseflight").setExecutor(flightCommand);
+        command("baseflight").setTabCompleter(flightCommand);
+        BaseVisitorsCommand visitorsCommand = new BaseVisitorsCommand(stateManager);
+        command("basevisitors").setExecutor(visitorsCommand);
+        command("basevisitors").setTabCompleter(visitorsCommand);
         GoToBaseCommand goToBaseCommand = new GoToBaseCommand(stateManager, teleportManager);
         command("gotobase").setExecutor(goToBaseCommand);
         command("gotobase").setTabCompleter(goToBaseCommand);

src/main/java/games/dmg/spigotbase/TogglePreference.java

@@ -2,8 +2,8 @@ package games.dmg.spigotbase;
 
 import java.util.Locale;
 
-final class NavigationPreference {
-    private NavigationPreference() {
+final class TogglePreference {
+    private TogglePreference() {
     }
 
     static boolean resolve(boolean current, String[] arguments) {